What does code P23E5 mean?

Q: What does code P23E5 mean?

EGR C Control Stuck Open. P23E5 means the engine computer has commanded the exhaust gas recirculation (EGR) valve for cylinder bank 2, circuit C, to close, but the valve position feedback indicates it is still open. The computer detects this mismatch between the commanded closed state and the actual open position, which can upset combustion and emissions control.

DTC codes / P23xx · Ignition system and misfire / P23E5

P23E5EGR C Control Stuck Open

P23E5 means the engine computer has commanded the exhaust gas recirculation (EGR) valve for cylinder bank 2, circuit C, to close, but the valve position feedback indicates it is still open. The computer detects this mismatch between the commanded closed state and the actual open position, which can upset combustion and emissions control.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.